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Description
GB
Model 9010/9020 SIL
The Control Unit 9010/9020 SIL fulfils the requirements of ATEX directive as well as SIL 2
requirements based on EN 61508 standard.
The control units connected to detectors or transmitters that operate in potentially hazardous
areas must be configured according to ATEX directive requirements for detection of combustible
gases or oxygen.
Besides the ATEX configuration, the control unit can be configured for the use of individual chan-
nels depending on different application requirements.
Main features of the control unit:
• Passive catalytic and semiconductor detectors or 4-20 mA transmitters using 2 or 3 wire
connection can be connected.
• Input can be configured as dual state (digital) inputs
• Front panel LCD display and four key keypad (up, down, ESC, Enter) for ease of configuration
and calibration. Specific messages on the display inform and identify any operational failure
and any erroneous data setting.
• 3 alarm thresholds (C- CAUTION, W- WARNING, A- ALARM) based on preset values.
• Intermittent module diagnostics for information on module status and drive failure relay in case
of module or connected detectors malfunction.
• Indication of output alarms via relay contacts.
• External horn can be connected.
• The control unit provides a 0(4)-20 mA output signal; it is independent for individual channels.
• The control unit can be fully parametrized via front panel keypad.
• Passwords and access codes prevent accidental or unwanted unit configuration.
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